{"product_id":"rosco-manufacturing-bloodline-ar-15-m4-5-56-nato-14-5-m4-barrel-nitride","title":"Rosco Manufacturing Bloodline AR-15\/M4 5.56 NATO 14.5\" M4 Barrel - Nitride","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003eRosco Manufacturing Bloodline 14.5\" M4 Barrel\u003c\/strong\u003e\u003c\/span\u003e is a replacement barrel for an \u003cstrong\u003eAR-15\/M4-pattern carbine\u003c\/strong\u003e, configured for a \u003cstrong\u003ecarbine-length gas system\u003c\/strong\u003e. Its \u003cstrong\u003eM4\/Government profile\u003c\/strong\u003e makes it a practical choice for patrol or duty-oriented carbine builds.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eChambered in \u003cspan style=\"background-color: #ffff00;\"\u003e\u003cstrong\u003e5.56 NATO\u003c\/strong\u003e\u003c\/span\u003e, this \u003cstrong\u003e14.5 in\u003c\/strong\u003e barrel is made from \u003cstrong\u003e4150 chrome-moly-vanadium steel\u003c\/strong\u003e and finished in \u003cstrong\u003eblack nitride\u003c\/strong\u003e. It uses a \u003cstrong\u003e1:7 twist\u003c\/strong\u003e, a \u003cstrong\u003e0.750 in gas-block journal\u003c\/strong\u003e, and an \u003cstrong\u003e11-degree target crown\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe muzzle is threaded \u003cstrong\u003e1\/2x28\u003c\/strong\u003e for compatible muzzle devices. Listed barrel weight is \u003cstrong\u003e25.86 oz\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eDISCLAIMER:\u003c\/span\u003e\u003c\/strong\u003e Firearms and receivers are subject to state-specific shipping restrictions and must be transferred through a valid FFL dealer. Please visit \u003ca href=\"\/shipping-restrictions\/\" target=\"_blank\"\u003eour shipping restrictions page\u003c\/a\u003e to review all applicable restrictions for your state. Subject to change.\u003c\/span\u003e\u003c\/p\u003e","brand":"Rosco Manufacturing","offers":[{"title":"Default Title","offer_id":54988429820226,"sku":"179461","price":142.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_89785fe6-a676-4736-a51b-e7a8ca554905.png?v=1784135357","url":"https:\/\/centerfiresystems.com\/products\/rosco-manufacturing-bloodline-ar-15-m4-5-56-nato-14-5-m4-barrel-nitride","provider":"Centerfire Systems","version":"1.0","type":"link"}